/* ==========================================================================
   Design tokens — tweak these to make the site your own.
   ========================================================================== */
:root {
  --color-bg: #faf8f5;
  --color-bg-alt: #f3efe8;
  --color-surface: #fffdfb;
  --color-text: #221f1b;
  --color-text-muted: #5e584f;
  --color-accent: #a75d3a;
  --color-accent-strong: #7e4029;
  --color-border: #e8dfd2;
 
  --font-heading: "Fraunces", Georgia, serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
 
  --max-width: 920px;
  --radius: 12px;
  --transition: 0.2s ease;
}

[data-theme="dark"] {
  --color-bg: #1b1a18;
  --color-bg-alt: #232120;
  --color-surface: #292622;
  --color-text: #f3ede4;
  --color-text-muted: #c7bcae;
  --color-accent: #e08a5a;
  --color-accent-strong: #f2a877;
  --color-border: #433d38;
}

[data-theme="dark"] body {
  background:
    radial-gradient(circle at top, rgba(224, 138, 90, 0.12), transparent 30%),
    var(--color-bg);
}

[data-theme="dark"] .meta-block,
[data-theme="dark"] .timeline-item,
[data-theme="dark"] .contact-list a,
[data-theme="dark"] .tag-list li {
  background-color: var(--color-surface);
}

[data-theme="dark"] .meta-block {
  background: linear-gradient(180deg, rgba(41, 38, 34, 0.96), rgba(28, 26, 24, 0.92));
}

[data-theme="dark"] .timeline-item {
  background: linear-gradient(180deg, rgba(41, 38, 34, 0.96), rgba(32, 30, 27, 0.94));
}

[data-theme="dark"] .timeline-date::after {
  background: rgba(14, 13, 12, 0.98);
  color: #f8f1e7;
}

[data-theme="dark"] a[data-preview]::before {
  background: rgba(12, 11, 10, 0.98);
  color: #f6eee6;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top, rgba(167, 93, 58, 0.06), transparent 32%),
    var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.7;
  transition: background var(--transition), color var(--transition), filter var(--transition);
  position: relative;
}

.page-shell {
  position: relative;
  z-index: 1;
}

h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.2;
}

a {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 0.18em;
  transition: color var(--transition), background-color var(--transition), border-color var(--transition);
  position: relative;
}

a:hover {
  color: var(--color-accent-strong);
  background: rgba(164, 85, 47, 0.08);
  border-radius: 0.2rem;
}

a[data-preview]::before {
  content: attr(data-preview);
  position: absolute;
  left: 50%;
  top: calc(100% + 0.5rem);
  transform: translateX(-50%);
  background: rgba(34, 32, 29, 0.96);
  color: #f5efe8;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 0.5rem;
  padding: 0.35rem 0.5rem;
  font-size: 0.72rem;
  line-height: 1.2;
  white-space: nowrap;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.12);
  opacity: 0;
  pointer-events: none;
  z-index: 20;
  transition: opacity var(--transition);
}

a[data-preview]:hover::before,
a[data-preview]:focus-visible::before {
  opacity: 1;
}

.timeline-list a,
.contact-list a {
  font-weight: 600;
}

.timeline-list a::after,
.contact-list a::after {
  content: "↗";
  margin-left: 0.2rem;
  font-size: 0.8em;
  opacity: 0.8;
}

.contact-list a::after {
  content: none;
}

/* ==========================================================================
   Theme toggle
   ========================================================================== */
.theme-toggle {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 100;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  cursor: pointer;
  font-size: 1.1rem;
}

/* ==========================================================================
   Header / nav
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--color-bg) 92%, transparent);
  backdrop-filter: blur(8px);
}

.nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 1.5rem 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-brand {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--color-text);
  letter-spacing: 0.02em;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--color-text-muted);
  font-weight: 500;
  font-size: 0.95rem;
}

.nav-links a:hover {
  color: var(--color-accent);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--color-text);
  display: block;
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 4rem 1.5rem 3rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  color: var(--color-accent);
  font-weight: 700;
  margin: 0 0 0.7rem;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 3.6rem);
  margin: 0;
  letter-spacing: -0.04em;
}

.tagline {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  margin: 0.5rem 0 1.25rem;
}

.hero-summary {
  max-width: 60ch;
  color: var(--color-text-muted);
  margin: 0;
  font-size: 1.05rem;
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  max-width: 60rem;
  margin-top: 1.6rem;
}

.meta-block {
  padding: 1rem 1.05rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,0.6), rgba(255,255,255,0.2));
  box-shadow: 0 10px 24px rgba(34, 31, 27, 0.04);
}

[data-theme="dark"] .meta-block {
  background: linear-gradient(180deg, rgba(41, 38, 34, 0.96), rgba(28, 26, 24, 0.92));
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.16);
}

.meta-label {
  display: block;
  font-size: 0.73rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.meta-block p {
  margin: 0;
  color: var(--color-text-muted);
}

.hero-actions {
  margin-top: 1.75rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform var(--transition), background var(--transition), color var(--transition);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-accent-strong);
  color: #fff;
}

.btn-secondary {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}

/* ==========================================================================
   Sections
   ========================================================================== */
.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.75rem 1.5rem 0;
}

main {
  padding-bottom: 2rem;
}

.section-title {
  font-size: 1.5rem;
  margin: 0 0 1.25rem;
  letter-spacing: -0.02em;
}

.section-text {
  color: var(--color-text-muted);
  max-width: 65ch;
}

/* ==========================================================================
   Timeline (experience / education)
   ========================================================================== */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.timeline-item {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(255,255,255,0.95), rgba(255,255,255,0.82));
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.3rem 1.5rem;
  box-shadow: 0 8px 24px rgba(34, 31, 27, 0.03);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

[data-theme="dark"] .timeline-item {
  background: linear-gradient(180deg, rgba(41, 38, 34, 0.96), rgba(31, 29, 27, 0.94));
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}

.timeline-item:hover {
  transform: translateY(-1px);
  border-color: rgba(167, 93, 58, 0.25);
  box-shadow: 0 14px 28px rgba(34, 31, 27, 0.06);
}

.timeline-item > * {
  position: relative;
  z-index: 1;
}

:root {
  --max-width: 920px;
}

.timeline-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem 1rem;
}

.timeline-header h3 {
  flex: 1 1 360px;
  min-width: 0;
  font-size: clamp(1rem, 1.9vw, 1.1rem);
  line-height: 1.35;
  margin: 0;
}

.timeline-date {
  flex-shrink: 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  white-space: nowrap;
  position: relative;
}

.timeline-date::after {
  content: attr(data-duration);
  position: absolute;
  left: 50%;
  top: calc(100% + 0.45rem);
  transform: translateX(-50%);
  background: rgba(34, 32, 29, 0.96);
  color: #f5efe8;
  border-radius: 0.45rem;
  padding: 0.25rem 0.5rem;
  font-size: 0.68rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.timeline-date:hover::after,
.timeline-date:focus-visible::after,
.timeline-date[data-duration]:hover::after,
.timeline-date[data-duration]:focus-visible::after {
  opacity: 1;
}

.timeline-org {
  margin: 0.25rem 0 0.75rem;
  font-weight: 500;
  color: var(--color-accent);
}

.timeline-list {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--color-text-muted);
}

.timeline-list li {
  line-height: 1.7;
}

.timeline-list li + li {
  margin-top: 0.45rem;
}

.timeline-list a {
  text-decoration-color: rgba(164, 85, 47, 0.45);
}

/* ==========================================================================
   Skills
   ========================================================================== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.5rem;
}

.skill-group h3 {
  font-size: 1rem;
  margin: 0 0 0.75rem;
}

.tag-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
}

.tag-list li {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 0.35rem 0.8rem;
  font-size: 0.84rem;
  color: var(--color-text-muted);
  transition: transform var(--transition), border-color var(--transition), background var(--transition);
}

.tag-list li:hover {
  transform: translateY(-1px);
  border-color: rgba(167, 93, 58, 0.25);
  background: rgba(167, 93, 58, 0.04);
}

/* ==========================================================================
   Contact
   ========================================================================== */
.contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.contact-list li {
  display: inline-flex;
}

.contact-list a {
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.9rem;
  height: 2.9rem;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(255,255,255,0.75), rgba(255,255,255,0.3));
  color: var(--color-accent);
  text-decoration: none;
  box-shadow: 0 6px 18px rgba(34, 31, 27, 0.02);
  transition: transform var(--transition), border-color var(--transition), background var(--transition), box-shadow var(--transition), color var(--transition);
}

.icon-link svg {
  width: 1.15rem;
  height: 1.15rem;
  fill: currentColor;
}

.contact-list a:hover {
  transform: translateY(-1px);
  border-color: var(--color-accent);
  background: rgba(167, 93, 58, 0.06);
  box-shadow: 0 10px 22px rgba(34, 31, 27, 0.04);
}

[data-theme="dark"] .contact-list a {
  background: linear-gradient(180deg, rgba(41, 38, 34, 0.9), rgba(28, 26, 24, 0.96));
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  text-align: center;
  padding: 2rem 1.5rem 3rem;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 640px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: 1rem 1.5rem;
    gap: 1rem;
    display: none;
  }

  .nav-links.open {
    display: flex;
  }
}